By 1960, Coles notes sales had peaked. They had over 120 titles, mostly on English novels; however, they covered other subjects including math, science and foreign languages. Coles Notes is currently owned by Indigo Books in Canada.

^"50 years of Coles Notes". Vancouver Sun. January 31, 1998. p. D9. Chapters bookstore will pay $5,000 for an intact copy of the first Coles Notes ever published. Chapters, which owns the rights to Coles Notes, wants to find the first edition of the notes -- a study guide for Columba, a translated French novel by Prosper Merimee, which was on Ontario's Grade 13 curriculum in 1948.Link via ProQuest.